Summary
To understand the memory structure and performance of the system, knowledge about data sizes is necessary. The memory units discussed in this lesson with their example usages are summarized in the table below.
| Unit | Bytes (Powers of 2) | Example Usage |
|---|---|---|
| Bits | 2 | Machine Code |
| Bytes | 8 | A single character |
| Kilobytes | 1024 | Text document |
| Megabytes | 1024^2 | MP3 audio files, video files |
| Gigabytes | 1024^3 | Movies |
| Terabytes | 1024^4 | Hard disk drives |
| Petabytes | 1024^5 | Google servers |